Energy Efficient Cooperative Wireless Communication and by Kun Peng

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As an extension, we are interested in the interference impact on network performance, that is, under a realistic assumption that multiple nodes are active for transmission at the same time. 8) where pI is the summation of interfering power at the receiver. For Rayleigh fading, |aj,si+1 |2 is exponentially distributed with parameter dαj,si+1 . By taking pI , then the average of |aj,si+1 |2 and assuming the white noise power p0 the above SINR is p = SINR ≈ p = pI p = α p/d j,si+1 j 1 . 3 Si+2 Si+1 Si 37 One example of a cooperative route.

From another aspect, the total power consumption can also be reduced by using cooperation. Various cooperative routing algorithms have been developed to further reduce the total transmission power of cooperative transmission [22, 23, 24, 25, 26]. However, most existing cooperative routing algorithms are implemented by identifying a shortest path first, and thus the performance gains of cooperative communication cannot be fully exploited. 1, we propose a power-efficient cooperative routing algorithm as follows.